Add gallery behavior

Author: nobodyiscertain

behaviors/gallery.js

@@ -0,0 +1,23 @@
+(function ($) {
+  'use strict';
+
+  TXT.behaviors.gallery = {
+    $el: null,
+
+    init: function ($el) {
+      this.$el = $el;
+      this.start();
+    },
+
+    start: function () {
+      this.$el.magnificPopup({
+        delegate: 'a',
+        type: 'image',
+        gallery: {
+          enabled: true
+        }
+      });
+    }
+  };
+
+}(jQuery));